FIAB Practice: Ratios & Proportional Relationships

Ratios & Proportional Relationships

Comparing 2 items

Ratio

Comparison through divison

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Unit Rate has a value of 1 in the denominator

Ex: Miles per hour​

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Rate

Two fractions set equal to each other.

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Units must match either:

• Vertically

• Horizontally​

Proportion

When given a percent word problem look for Key Words to determine what you are given and what is missing:

Part = 15 Percent = 25

Whole = 60​

Percent Key Words​

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​15 is 25% of 60.

​Some text here about the topic of discussion.

Percent Proportion

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1. Cross Multiple & Divide

2. Scaling Up or Down

​Solving

Fill in the Blanks

100% of what number is 50?

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

How many inches are in 3.5 feet?

(hint: there are 12 inches in 1 foot)

Fill in the Blanks

What is 60% of 70?

REMEMBER! $\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

Find the missing value within the table.

(Hint: What is happening to the X column to make the Y?)

Fill in the Blanks

If Mark ran 15 miles in 135 minutes, how many minutes does he run per mile?

(Hint: set it up like a proportion) $\frac{135\ Min.}{15\ Miles}=\frac{?\ Min.}{1\ \ Mile}$  

Fill in the Blanks

He only colored 25% of the shapes on his paper, which IS 6.

Find the TOTAL of shapes on Brett's paper!

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

Use a proportion!

$\frac{194\ Miles}{4\ Hours}=\frac{?\ Miles}{1\ Hour}$  

Put answer as a decimal!

Multiple Select

First, you have to divide each category of items to find their unit rate (including the peanuts).

 

Select the items down below only if they have the SAME unit rate.

There are 2 answers!!!

• A jar of jam

• Sandwiches

• Cups of fruit

• Ham

Fill in the Blanks

What IS 40% of 60?

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

30 IS 25% OF what number?

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

20% of what number is 40?

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

First, find how much each boy sold their game for.

(hint: you are missing the part) Use the formula!!!

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$  

Fill in the Blanks

50% OF what number IS 19?

$\frac{\%}{100}=\frac{PART\ \left(is\right)}{TOTAL\ \left(of\right)}$